Struct chalk_engine::strand::Strand
source · pub(crate) struct Strand<I: Interner> {
pub(crate) ex_clause: ExClause<I>,
pub(crate) selected_subgoal: Option<SelectedSubgoal>,
pub(crate) last_pursued_time: TimeStamp,
}Fields§
§ex_clause: ExClause<I>§selected_subgoal: Option<SelectedSubgoal>Index into ex_clause.subgoals.
last_pursued_time: TimeStampTrait Implementations§
source§impl<I: Interner> TypeFoldable<I> for Strand<I>
impl<I: Interner> TypeFoldable<I> for Strand<I>
source§fn try_fold_with<E>(
self,
folder: &mut dyn FallibleTypeFolder<I, Error = E>,
outer_binder: DebruijnIndex,
) -> Result<Self, E>
fn try_fold_with<E>( self, folder: &mut dyn FallibleTypeFolder<I, Error = E>, outer_binder: DebruijnIndex, ) -> Result<Self, E>
Apply the given folder
folder to self; binders is the
number of binders that are in scope when beginning the
folder. Typically binders starts as 0, but is adjusted when
we encounter Binders<T> in the IR or other similar
constructs.§fn fold_with(
self,
folder: &mut dyn TypeFolder<I, Error = Infallible>,
outer_binder: DebruijnIndex,
) -> Self
fn fold_with( self, folder: &mut dyn TypeFolder<I, Error = Infallible>, outer_binder: DebruijnIndex, ) -> Self
A convenient alternative to
try_fold_with for use with infallible
folders. Do not override this method, to ensure coherence with
try_fold_with.Auto Trait Implementations§
impl<I> Freeze for Strand<I>where
<I as Interner>::InternedSubstitution: Freeze,
impl<I> RefUnwindSafe for Strand<I>where
<I as Interner>::InternedSubstitution: RefUnwindSafe,
<I as Interner>::InternedGoal: RefUnwindSafe,
<I as Interner>::InternedProgramClauses: RefUnwindSafe,
<I as Interner>::InternedLifetime: RefUnwindSafe,
<I as Interner>::InternedType: RefUnwindSafe,
impl<I> Send for Strand<I>
impl<I> Sync for Strand<I>
impl<I> Unpin for Strand<I>
impl<I> UnwindSafe for Strand<I>where
<I as Interner>::InternedSubstitution: UnwindSafe,
<I as Interner>::InternedGoal: UnwindSafe,
<I as Interner>::InternedProgramClauses: UnwindSafe,
<I as Interner>::InternedLifetime: UnwindSafe,
<I as Interner>::InternedType: UnwindSafe,
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
§impl<T> Cast for T
impl<T> Cast for T
source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
source§default unsafe fn clone_to_uninit(&self, dst: *mut T)
default unsafe fn clone_to_uninit(&self, dst: *mut T)
🔬This is a nightly-only experimental API. (
clone_to_uninit)§impl<T> Instrument for T
impl<T> Instrument for T
§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
§impl<T, I> Shift<I> for Twhere
T: TypeFoldable<I>,
I: Interner,
impl<T, I> Shift<I> for Twhere
T: TypeFoldable<I>,
I: Interner,
§fn shifted_in(self, interner: I) -> T
fn shifted_in(self, interner: I) -> T
Shifts this term in one level of binders.
§fn shifted_in_from(self, interner: I, source_binder: DebruijnIndex) -> T
fn shifted_in_from(self, interner: I, source_binder: DebruijnIndex) -> T
Shifts a term valid at
outer_binder so that it is
valid at the innermost binder. See [DebruijnIndex::shifted_in_from]
for a detailed explanation.§fn shifted_out_to(
self,
interner: I,
target_binder: DebruijnIndex,
) -> Result<T, NoSolution>
fn shifted_out_to( self, interner: I, target_binder: DebruijnIndex, ) -> Result<T, NoSolution>
Shifts a term valid at the innermost binder so that it is
valid at
outer_binder. See [DebruijnIndex::shifted_out_to]
for a detailed explanation.§fn shifted_out(self, interner: I) -> Result<T, NoSolution>
fn shifted_out(self, interner: I) -> Result<T, NoSolution>
Shifts this term out one level of binders.